Headlight wiring

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tankman

Headlight wiring

Post by tankman »

Just one very quick question guy's anyone know which wires from an aftermarket replacement headlight ( green and yelow wires coming off it ) are positive and negative. I don't want to burn out the bulb by wiring it wrong. Thanks in advance
Alan 
NigelDerEnglander
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Joined: Thu Nov 27, 2008 10:21 pm

Re: Headlight wiring

Post by NigelDerEnglander »

Hi Alan,

If it's a bulb (not an LED) then there's no polarity issue.

If it's an LED, then it can't be blown by reverse fitting BUT it CAN be blown by the _correct_ polarity if there is no current limiting resistor in series with it. All different colour LEDs have a different working voltage, but if you put a ~270 Ohm resistor in series (either wire, it doesn't matter) you should be able to drive it from any typical electronics we encounter in the HL tanks.

Nige
tankman

Re: Headlight wiring

Post by tankman »

Thank you Nige. Will have to pop into town and get a resistor. All the best for now
Alan
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